(06-18-2014, 07:41 PM)Sleepster Wrote: Reading this thread gives me even more evidence for my belief that the precision of the AHI is not very good. In other words, anything below 5 is considered "good" so clinically there is no difference between a 0.3 and a 3.0. In other words, from a statistical point of view they're equivalent.
That's sort of an insurance thing. AHI=5.1, you get coverage from insurance. AHI=4.9, not covered. In theory, people right around the threshold, either above or below aren't at a great risk of harm from untreated apnea, but you need to draw the line somewhere.
A separate problem is that AHI isn't the whole story, but insurance and doctors want a number to work with. In some cases a person with low AHI might actually be suffering from the effects of apenea more than a person with higher numbers.